baber/WOPTO huggingface dataset:
Patent GB-981845-A (GB)
Title: Improvements in or relating to hydraulic pumps
IPC: F04B1/14
Filed: 1963-02-19
Abstract: 981,845. Reciprocating pumps. WEATHERHEAD CO. Feb. 19, 1963 [Feb. 23, 1962], No. 6650/63. Drawings to Specification. Heading F1A. [Also in Division G3] The subject-matter of this Specification is identical with that described in Specification 981,844 but the claims are concerned with control of the effective displacement of the pump by a pair of servopistons. Specification 952,203 also is referred to.
Patent GB-106132-A (GB)
Title: Improvements in or relating to Defilading Attachments for Fire Arms.
Inventor: PONCHIELLI GUGLIELMO
IPC: F41C23/00
Filed: 1916-05-09
Abstract: 106,132. Ponchielli, G., and Pavesi, G. May 9, 1916. S t o c k s ; sighting- accessories; firing - appliances. - Consists of the combination of a special hyposcope and a special auxiliary stock for use in firing from cover. the hyposcope comprises two mirrors, close together, carried by hinged frames 7, 7<a>, Fig. 2, on a base-plate 1. Each frame is attached to a socket 6 adapted to turn on a hinge pin 4 or 5 which is carried radially by a disk 2 or 3 adapted to turn on a transverse pivot at the end of the base-piece. Springs hold the mirrors in their adjusted positions. The auxiliary stock comprises a telescopic rod or tube 14, 15, 16, Fig. 1, secured to the rifle behind the trigger-guard and provided with a hinged shoulder piece. A spring within the tube 15 absorbs recoil. The auxiliary stock is supported by the ordinary sling 21 which is passed over the shoulder piece and held taut by a spring band 13. The trigger is operated by a lever 18 pivoted to the auxiliary stock.
Patent GB-1163976-A (GB)
Title: Photoconductive Electro-Optic Transducer
IPC: G01D5/26
Filed: 1967-02-13
Abstract: 1,163,976. Light modulators. TEXAS INSTRUMENTS Inc. 13 Feb., 1967 [24 Feb., 1966], No. 6696/67. Heading H4F. An image intensifier comprises an electrooptic layer 11, Fig. 1, a transparent conductive layer 16, a conductive and reflective layer 12, a photoconductive layer 18 on the non-reflecting side of layer 12 and a transparent conductive layer 20 sandwiched between glass panels 15 and 19 and a polarizing sheet 17, a voltage source 21 being connected between the two transparent conductive layers so that image light 14 directed on to the photoconductive layer alters the voltage drop and thus the birefrigence across regions of the electro-optic layer, whereby varying amounts of the incident ambient light 13, which is reflected from layer 12, pass through polarizer 17 to an observer 22. Preferably, the thickness of the electro-optic material and the bias voltage from source 21 are selected so that the front face of the intensifier appears dark and does not reflect any ambient light, a spot of light directed on to the photoconductive surface causing the electrooptic material to change the state of polarization of ambient light to allow it to be reflected back through the polarizer. In Fig. 3, polarizer 17 has been replaced by a Brewster's angle polarizer 31 and an analyser 32 and the reflector film 12 is discontinuous comprising a matrix of mirrors each isolated from the other to reduce sheet conduction therein. An opaque layer may be included between the back of mirrors 12 and the photoconductive layer 18. Electro-optic crystal 11 may comprise KDP, potassium dideuterium phosphate or hexamethylene tetramine, and photoconductive layer 18 may comprise CdS or CdSe.
Patent GB-547929-A (GB)
Title: Improvements relating to methods of permanently sealing steel tank mercury arc rectifiers
IPC: H01J9/40
Filed: 1941-05-26
Abstract: 547,929. Valves. BRITISH THOMSONHOUSTON CO., Ltd., and WHITAKER, F. P May 26, 1941, No. 6743. [Class 135] [Also in Groups XL and XXVI] For sealing mercury arc rectifiers of the permanently sealed steel tank type, a valve is used comprising a soft steel base a welded to the tank and having a number of rings d of saw-tooth section. A hardened steel head b is forced down on the rings by a screwed spindle c. The sealing may be further secured by a filling of a wax of a high viscosity and low vapour pressure. The wax is put in position during the final stage of evacuation and melted by induction heating &c. The vacuum pump connection is then broken, and atmospheric pressure permitted to drive the wax into intimate contact with the metal surfaces.
Patent GB-696706-A (GB)
Title: Improvements in reel mounting for stranding or winding machines
IPC: D07B7/06
Filed: 1951-03-21
Abstract: 696,706. Creels &c. SYNCO MACHINE CO. March 21. 1951 [Jan. 9, 1951], No. 6768/51. Class 120(ii) [Also in Group XXV] A cradle for supporting a bobbin in a winding or unwinding machine comprises a three-jaw chuck arranged to grip each flange of the bobbin each chuck being mounted upon bearings and one jaw in each chuck being adapted for movement to permit the insertion of the bobbin and to grip the flange thereof. Each chuck comprises a member 16 mounted for rotation within bearings 14 which carries the fixed jaws 17, 18 and the movable jaw 19. The movable jaw comprises an L-shaped member 29 having a V groove 40 for gripping the flange, attached by a screw 28 to a pivot 26 carried by the member 16. A friction strap 30 may be provided to retard the rotation of the bobbin. Instead of having one movable and two fixed jaws, each chuck may comprise several movable jaws.
Patent GB-682535-A (GB)
Title: Fluid pressure operated device
Inventor: WEBB SYDNEY RICHARD
IPC: F04B49/02
Filed: 1950-03-18
Abstract: 682,535. Fluid-actuated valves. DUNLOP RUBBER CO., Ltd. Feb. 28, 1951 [March 18, 1950], No. 6801/50. Class 135. A fluid-pressure control device interposed between a fluid pressure source and a storage container comprises a spring-loaded, non-return valve controlling the flow of pressure fluid to the container and a normally closed spring-loaded relief valve operable when the pressure in the container reaches a predetermined value, which pressure acts on a fluid-tight deformable chamber completely filled with a substantially incompressible but deformable substance to connect the fluid pressure source with exhaust. As shown, the device connects an air compressor to air storage bottles and comprises a housing 1 having connections 2, 3 to the compressor and the bottles respectively, a spring-loaded non-return valve 19 controlling a passage 12 -in the housing leading to the connection 3. A loose ball valve 18 urged on to its seat by the pressure of a spring 4b acting through a fluted member 17 controls flow between the connection 2 and an exhaust port 16 communicating with an outlet port 30. A passage 35 on the outlet side of the valve 19 connects the bottles to an operating chamber 31a defined by a sleeve member 23 and a cap 31 secured to the housing by a nut 32. The chamber 31a houses a metal bellows 33, sealingly connected to the sleeve 23 and a pressure plate 34, and completely filled with silicone grease, whilst a cylinder 25 having a plunger 28 is screw-threadedly attached to the sleeve 23. The mean diameter of the bellows is made larger than the diameter of the plunger 28 so that when the pressure in the bottles exceeds a value determined by the spring 4b and acts on the pressure plate 34, the plunger moves axially a greater amount than the bellows to engage a pin 29 and unseat the ball 18 to connect the connection 2 with the port 16. The non-return valve 19 then seats under the influence of its spring and the pressure in the containers. The silicone grease may be replaced by putty or oil, and the bellows by a flexible bag or a diaphragm. The device may also be applied to a hydraulic system.
Patent GB-942396-A (GB)
Title: Improvements in strainer devices for centrifugal separators
IPC: B04B3/02
Filed: 1960-02-26
Abstract: 942,396. Centrifugal separators. ESCHER WYSS A.G. Feb. 26, 1960 [March 2, 1959], No. 6844/60. Heading B1D. A centrifugal separator, e.g. of the continuously-operating push-type, is provided with a device 13, e.g. a cylindrical slide valve 16, at the discharge end of the drum 3 for the removal of the "capillary layer" which is defined in the Specification as being a thin layer of solid material at the discharge end of the drum containing liquid which cannot be removed by centrifuging. The capillary layer of the material 8 being centrifuged passes into chambers 15 of the valve 16, in the position shown in Fig. 2, and when the valve 16 is moved by rods 19 connected to the pusher 4 to the position shown in Fig. 1 the layer passes through the openings 17 of the drum 3 into a collector 18. The valve 16 may be provided on all stages of a multi-stage separator, each valve being connected to an adjacent drum. The device 13 may comprise an annular funnel, fixed to the drum, which may be provided with a slide valve at its discharge end. A flushing device having a liquid trap may be provided at the discharge end of the funnel to dissolve the capillary layer forming therein. The inlet to the funnel may be covered by a screen. A drum for re-centrifuging the capillary layer may be provided at the discharge of the funnel, the funnel serving as a pusher for the re-centrifuging drum.
Patent GB-941623-A (GB)
Title: Improvements in or relating to provers for baking purposes
IPC: A21C13/02
Filed: 1960-02-27
Abstract: 941,623. Dough provers. MELVIN & GILLESPIE Ltd., and J. F. C. STEVEN. May 29, 1961 [Feb. 27, 1960], No. 6954/60. Heading A4D. Dough pieces are conveyed through a prover, either over a long tortuous path, or in the opposite direction over a shorter more direct path. The dough pieces are fed from a divider moulder 10 to a loading point 12 and are conveyed upwards and through the prover by an endless conveyer 13 before being finally discharged at a point 15 on to another conveyer (not shown). When a short proof time or only resting is required, the drive motor (not shown) of the conveyer 13 is reversed and the dough pieces follow the shorter path to the discharge point 15. Alternative selectively available discharge points 15A and 15B lead, via a positioning roller 16 or a pinning device 20 respectively, to a panning machine 19. Heating means may be incorporated in the trunk 11A. The conveyer 13 drive may include a speed varying mechanism.
Patent GB-953848-A (GB)
Title: Improvements in or relating to teleprinter systems
IPC: H04L27/14
Filed: 1963-02-21
Abstract: 953,848. Telegraphy. SIEMENS & HALSKE A.G. Feb. 21, 1963 [Feb. 22, 1962], No. 6961/63. Heading H4P. The invention provides a device for compensating for D.C. superimposed on a demodulated F.M. signal. The demodulated signal controls the switching of a trigger circuit which is such that it is switched when the signal is a predetermined potential above the maximum negative potential of the signal and is switched back again when the signal is at an equ potential below the following maximum positive of the signal. For example, the output of discriminator DS, Fig. 1, is waveform DS, Fig. 3, which has a D.C. bias #U. The range over which diodes D1, D2 do not conduct is C-R1 to R1-C. The potentials C and R1 vary with the demodulated signal as shown, and it is the potential DS-R1 that is used to trigger the bi-stable circuit that forms the remainder of the circuit. The output of the bi-stable circuit is a waveform having square flanks and equal positive and negative excursions. Diodes D1, D2 may be replaced by Zener diode arrangements or by a varistor, Figs. 4-6 (not shown).
Patent GB-1501624-A (GB)
Title: Dynamo-electric machines
IPC: H02K31/00
Filed: 1975-05-15
Abstract: 1501624 Homopolar dynamoelectric machines REYROLLE PARSONS Ltd 15 May 1975 [15 Feb 1974] 7019/74 Heading H2A A homopolar dynamoelectric machine has a cylindrical rotor drum 4 supported on a rotor shaft 1 by radially extending means 5 disposed between the ends of the drum, and has one or more stationary superconducting field coils 6, 7 mounted within the drum, the drum comprising one or more rotor conductors which cut the field of the field coil(s) as the rotor rotates. In the arrangement shown, axially extending conductors (not illustrated) on the drum 4 have their ends terminating in slip ring sets 10, 11, and are interconnected with stationary conductors 12 by means of brushgear 13, 14. The coils 6, 7 and a pair of flux neutralizing superconducting coils 15, 16 are disposed within a pair of cryostats 8, 9. In a further arrangement (Fig. 3, not shown) only one superconducting coil (6) is used. In each case the rotor conductors may be arranged on either the outside or the inside of the drum. The support means 5 may be formed by one or more discs or by a spoked wheel.
Patent GB-1203291-A (GB)
Title: Superconductors
Inventor: ROBERTS JOHN ALBERT
IPC: H01L39/14
Filed: 1967-03-17
Abstract: 1203291 Super-conductors BRUNSWICK CORP 17 March 1967 [17 March 1966] 7041/67 Headings H1A A5 and A4D  A composite super-conductor comprises a matrix of at least two materials containing a super-conductive zone formed by inter-diffusion of the two materials to provide a progressive variation in composition across the zone, the matrix having been subjected to constriction while enclosed in a can. Fig. 1 shows an arrangement comprising a can 15, filaments 13 of Nb and a body 14 of a nickel-iron alloy; the filaments are less than 12Á in a diameter, the assembly being produced by successive constriction processing and annealing to produce a diffusion zone at the interface between the two materials. Other arrangements are described where the can contains a spiral of two or more layers of the different materials or a series of concentric tubes or of planar layers. Examples of combinations of materials said to be suitable are: Nb-Sn; V-Si; V-Ga; Nb-C; Zr-Nb; Ti-Nb; Ti-V; Mo-Ro; Ti-Nb-V; Zr-Nb-V; Zr-Ti-Nb and Zr-Ti-V. The can may be of copper.
Patent GB-1184501-A (GB)
Title: Electrical Connections to Molten Metal.
Inventor: HETZEL PETER JOHN GRENVILLE
IPC: H01R3/08
Filed: 1967-02-14
Abstract: 1,184,501. Electromagnetic mixing; electric couplings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 13 Feb., 1968 [14 Feb., 1967], No. 1702/67. Heading B1C. [Also in Division H2] , Electrical connection is made with molten metal 5 contained in a container 3 by providing a duct 9 with an electrode member 11 within its bore so that molten metal fills the duct and is liquid at the end 9A adjacent the container and solid at the end 9;B adjacent the electrode. The duct may either project from the container wall or be a bore through it and is provided with separators to minimise circulation of the liquid within the duct caused by self induced eddy currents. The outer end 9B of the duct is cooled either by coolant circulating in tubes 17 or by an air blast. A normal lug connection connects cable 15 to electrode 11. The connection is used in pumping or stirring apparatus for molten metal and the electrode may have the same composition as the molten metal.
Patent GB-374868-A (GB)
Title: Improvements in ticket punches.
Inventor: PAUL BARKER JOHN
IPC: G07B11/05
Filed: 1931-03-07
Abstract: 374,868. Ticket punches with auxiliary punch. BARKER, J. P., 24, St. Vincent Road, Wallasey, Cheshire. March 7, 1931, No. 7118. [Class 106 (iii).] A ticket punch particularly of the type described in Specification 152,390, [Class 106 (iii), Fares &c.], has incorporated with it an auxiliary punch for punching transfer and similar tickets. The main ticket punch A with slot F, Fig. 1, is actuated by downward movement of the thumb piece G which has incorporated with it an auxiliary punch H, Fig. 2, for punching a transfer ticket &c. inserted in the slot g<3>. The punch H is operated by upward movement of the lever J, pivoted on pin j<1>, against the action of a spring h<1>, the punch H working in bushes g<4> and g<5> of tempered metal. In a modification an annular embossing member H<1>, Fig. 3, surrounds the punch H and after the punch H has operated and the spring h<2> is compressed to its limit, the member H<1> is actuated through continued upward movement of the lever J to emboss the ticket with a number &c. identifying the punch &c. The lever J may be a spring rigidly attached to the pin j<1> or it may be controlled by a spring interposed between J and G and in each of these cases the spring h<1>, Fig. 2, or h2, Fig. 3, may be dispensed with by attaching the punch H to the lever J so that they move together.
Patent GB-1513563-A (GB)
Title: Apparatus for playing a game
IPC: A63B69/00
Filed: 1976-02-20
Abstract: 1513563 Tethered ball game apparatus A A GAFFNEY & SONS Ltd 20 Feb 1976 [20 Feb 1975] 7224/75 Heading A6D Game apparatus comprises a post 1 carrying at its upper end an element 2 formed with a helical groove 3, a member 5 in the form of a single turn of a helix slidably engaging the groove, and a ball 8a attached by a cord 8 (and preferably a spring 7 and an extension 4 of member 5) to member 5. The ball may be a tennis ball or of sponge rubber.
Patent GB-222396-A (GB)
Title: Improvements in and relating to apparatus for delivering measured quantities by volume of petrol and other liquids
IPC: B67D7/16
Filed: 1923-07-28
Abstract: 222,396. Chambers, C. July 28, 1923. Fixed - chamber apparatus; with several chambers; valve systems for; with counting and registering apparatus and provision for continuous flow. - The apparatus comprises a plurality of measuring containers, a valve-controlled passage for each container leading to an interception chamber common to two or more containers and a delivery passage from the interception chamber whereby a continuous flow may be obtained in the delivery passage. The pump supplies liquid through a junction piece and pipes 3 to plug valves 5 at the base of containers 16. The valves are geared to a handle 14 and have inlet and outlet ports 6, 7 arranged at right angles. The arrangement is such that one container fills while the other is emptying. The containers are cylindrical with conical tips and bases, the outside cylindrical surface is continued above the top to form an annular trough communicating with overflow passages 26 and a common overflow pipe 27 leading to a chamber 28 enclosing a pivoted signal device. A bell device indicates operation of the valves. The discharges from the containers 16 are led by pipes 39 to an interception chamber 40. Directly under each pipe 39 is the cup 42 of a pivoted lever 41 carrying at its other end a signal 43 with the word " wait " upon it. Normally these signals are not visible through the transparent front of the chamber 40. On discharge the signal shows " wait " until the container is completely discharged. The chamber 40 allows of a continuous discharge through the flexible pipe 45 to the vehicle. A counter is fitted and is operated when the valve is operated. Specification 221,608 is referred to.
Patent GB-580500-A (GB)
Title: Improvements in or relating to coin controlled apparatus
IPC: G07F9/04
Filed: 1944-04-19
Abstract: 580,500. Coin-freed article-delivery apparatus. BRECKNELL, MUNRO, & ROGERS, Ltd., and DOLMAN, H. J. April 19, 1944, No. 7226. [Class 27] Returning coin; coin-discharging mechanism. -The inserted coins step-up a totaliser which unlocks a drawer or other delivery mechanism if the coins are of correct value ; if they are not, an attempted operation of the locked delivery mechanism imparts a small movement to it which acts to return the coins to the customer from a hopper in which they are temporarily held. As shown, coins of different denomination are inserted through separate slots and pass down corresponding chutes, e.g., 4 and 5, to a hopper 6, closing contacts such as 7, 8 and 9 in their passage to step-up a totaliser constructed as described in Specification 578,158. The base of hopper 6 is a sector-shaped member 11 which can be rocked forwardly or rearwardly (to left or right in Fig. 1), about its pivotal axis 12 from the normal position shown, for which purpose axis 12 is connected by lever arms and links 26 and 27 with an actuating shaft 30. An articledelivery drawer 32 has a rearward extension 42 with a raised lug 58, Fig. 1, co-operating with a spring-actuated locking catch 50 carried by a bell-crank 48. The catch 50 has a tongue 52 engaging over a pin 56 on a bell-crank 46, which pin normally locks the catch and drawer against opening movement to the left, Fig. 1. If, however, coins of correct value are inserted, the totaliser energizes a solenoid 57 whose armature rocks the bell-crank 46 clockwise so that its pin 56 lifts the catch 50 clear of the lug 58 on the drawer which can then be opened. During opening, a ramp 64, Fig. 2, on the drawer rocks a bell-crank 62 carrying a pin 85, which after initial lost-motion, rocks a tappet arm 60 and the actuating shaft 30 with which it is connected. This movement of shaft 30 (anti-clockwise in Fig. 1) rocks the hopper base to the left, Fig. 1, so that the coins are discharged by way of an "accept" passage 81 to the till. If the coins are of incorrect value and an attempt is made to open the drawer, limited movement of the drawer and catch 50 to the left is permitted by the locking pin 56 entering a slot under the tongue 52 on the catch. The movement to the left of the catch rocks its supporting bell-crank 48 clockwise, and this movement is communicated to the actuating shaft 30 and hopper base 11, the latter rocking to the right, Fig. 1, so that the coins pass to a "reject" passage 82 and are returned to the customer. In addition, a solenoid 22 may be provided to rock the hopper base 11 for recovering the coins, a customer-operated push-button serving to energize the solenoid. Movement of the hopper base 11 in either direction also zeroises the totaliser through a connecting pull-rod 80, Fig. 2. Where several drawers are associated with the same coin slots and hopper, the actuating shaft 30 is extended and connected for operation by any of them, though separate release solenoids 57 are provided for each.
Patent GB-825703-A (GB)
Title: Improvements in or relating to the preparation of pellets from powdered materials
Inventor: STARNES PETER EDWARD
IPC: B01J2/12
Filed: 1955-03-11
Abstract: 825,703. Pelleting machines. CAWOOD WHARTON & CO. Ltd. April 13, 1956 [March 11, 1955], No. 7237/55. Class 87(2). A method of pelleting finely divided material comprises charging a rotatable mixing drum, having baffles, with not more than a defined charge of material, rotating the drum at the highest practicable speed without centrifuging the charge, adding water during rotation initially at any rate and finally at a defined critical rate, continuing rotation after the charge has absorbed the water for a time, determined experimentally, to produce pellets having a defined resistance to impact and withdrawing the pellets' before recharging the drum. An apparatus, said to carry out the method, comprises a rotatable drum 1, mounted on rollers 2 and driven by a gear 3, 4, the drum having inlets 16, 18, a closable discharge opening 20, deflecting vanes 5 attached to the ends walls of the drum by tubes 6 and a longitudinal shaft 7 on which is mounted a framework 10 having a scraper 11 and couterweight 12. Water is supplied through pipes 14, 15.
Patent GB-1174546-A (GB)
Title: Plumb Lines with Magnetic Supporting Means
IPC: G01C15/10
Filed: 1968-02-14
Abstract: 1,174,546. Plumb lines. QUENOT & CIE S.A.R.L. Feb, 14, 1968 [July 26, 1967], No. 7258/68. Heading G1F. [Also in Division H1] A plumb-line comprises a casing 2, a drum 4 in the casing on which a line 5 is wound, the line carrying a plumb-bob 1, the side 11 of the casing being provided with an assembly 12 arranged in the form of a uniplanar co-ordinate array of a plurality of magnet elements each containing magnetic material to enable the plumb-line to be held against a metallic construction 18. Adjacent faces of the magnet elements contacting the construction 18 are of opposite polarity and the exterior surface of the assembly 12 is provided with a layer of rubber. The elements of the assembly 12 are in pellet form and the magnetic material is preferably in the form of grains. The casing 2 is provided with a handle 8, and a handle 6 is used to wind or unwind the line 5 in the drum 4. A housing 9 is located on the casing 2 to house the plumb-bob 1 when the line 5 is fully wound on the drum.